One Line Diagram Symbols Standards. The one-line diagram has its largest application in power flow studies. I'm sure that someone else will remember what the ANSI standard is for all the symbols.
I am starting to create our default symbol library. In the North American market, the American National Standards Institute (or ANSI for short), in cooperation with the Institute of Electrical & Electronics Engineers has developed standardized drawing symbols and nomenclature. We prepare UML diagrams to understand the system in a better and simple way.
The one-line diagram shows all pertinent information about.
The one-line diagram symbols presented here are commonly accepted symbols.
Though these names are not approved as standard notations, they are commonly used by most people. The one-line, or single-line, diagram shows the components of a circuit by means of single lines and the appropriate graphic symbols. One-line diagrams are an important means of communicating the components, relationships, and connections within a circuit or electrical system.